Typographic composing-machine.



M. c. INDAHL. TYPOGRAPHIC COMPOSING MACHINE;

APPLICATION FILED AUG.4. 191s.

Patentw Feb. 19; 1918..

4 SHEETS-SHEET i- M C. INDAHL. TYPOGRAPHIC COMPOSING MACHINE.

APPLICATION FILED AUG-4. me.

Patent ad Feb 19, 1918.

M. C; INDAHL.

TYPOGRAPHIC COMPOSING MACHINE APPLICATION FILED AUGHL i916 Patented Feb. 19,1918.

4 SHEETSa-SHEET 3.

M. C. INDAHL.

TYPOGRAPHIC COMPOSiNG MACHINE.

APPLICATION mm M4. was.

Patmtsd Feb. 19, 1918.

6 SHEETS-SHEET 4,.

prurnn stains Parana canton MAURITZ C. INDAI'IL, 0F PHILADELPHIA, PENNSYLVANIA, ASSIGNOR '10 LANS'ION MONOTYPE MACHINE COMPANY, OF PHILADEL?HIA, PENNSYLVANIA, A. CORPO- RATION OF VIRGINIA.

TYPOGBAPHIC COMPOSINGr-MACHINE.

Specification of Letters Patent.

Patented Feb. 19, 1918.

To all whom it may concern:

Be it known that 1, MAURITZ C. INDAHL, a citizen of the United States, and a resident of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have-invented certain new and useful Improvements in Typographic Composing-Machines; and I do hereby declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to keyboard composing machines for producing record strips containing signals representing characters and spaces constituting justified lines of type. More particularly my invention relates to machines of this kind which embody automatically operative justification indicating devices and which also embody a repeat mechanism, that is, a mechanism, controlled tor example by a special key, which produces a repetition of the signals for a given character the representative key of which is also operated.

Such composing machines having repeat mechanisms have proved to be of marked utility in the typographic composing art owing particularly to the great speed with wh ch the repeat mechanism is capable of causing the automatic repetition of desired signals in the record strip. Commercial operation of these machines has shown, however, that during the operation of the repeat mechanism within the justification area, the justification indicating devices are subjected to undue wear and shock sufficient to threaten theirearly disintegration while the line measuring mechanism, always a part of such machines, is caused at times to function unreliably resulting in-indications on the part of the justiiication indicating mechanism which are incorrect and the cause of erroneous justification signals in the recorc strip. These undesired results are traceable to the extreme speed with which the repeat mechanism acts and to the re istance encountered in setting the justification mechanism in motion. l/Vhatever the causes of the defects referred to, it is the object of my invention, generally speaking, to produce a keyboard composing mechanism in which these defects are eliminated but in which the speed of the repeat action .in the patents.

is in no degree sacrificed. More specifically, the object of my invention is to so arrange and relate the repeat mechanism with re spect to the automatically operating justification indicating mechanism that the latter is rendered inactive and unaffected by other mechanism while the repeat device is in operation. Other objects will be specifically pointed out or will otherwise appear in connection with the description of the embodiment of my invention shown in the accompanying drawings and presently to be described.

I have chosen for illustrating my inven tion a pneumatic keyboard composing machine of the general class of that shown in Patent No. $141,405, dated December 28th, 1909, and in its fundamental features the machine shown in the accompanying drawings is similar to the patented machine. The latter does not include, however, an automatically acting justification indicating mechanism. justification being there indicated by the actuation of a special key, manually operated. and the accompanying drawings show in this particular a device which is to a considerable extent similar to the justification indicating means of Patent No. 1,149,176., dated August 10th, 1915. A repeat mechanism is also shown herein which .follows in its main features the mechanism of Patent No. 1,149,175, dated August 10th, 1915.

In connection with the following description reference will be made to the three patents above mentioned and the reference characters thereof or modifications of such characters will be employed as much as possible in order to assist in the identification of the parts corresponding with those shown In the accompanying drawings,

Figure 1 i .1, board machine.

Fig. 2 is an enlarged view of a portion of the device of Fig. 1 showing the air pressure chamber and valves, the repeat motor and associated parts.

Fig. 3 is a detail view, parts being in section, showing the justification indicator actuating elements and their connection with the air pressure chamber through aconduit vertical. section 01 a keyinc governed by ajustification control valve v and the bar for operating said valve.

Fig. 4 i a front elevation of the meas uring and ustlfymg -mechan1sm, certain,

well known parts being omitted and others being broken away.

Fig. 5 is a detail view of the repeat motor rocker frame, a character designatingwbar and acharacter designating valve.

FigwG is a sectional elevation of a por-- tion of the keyboard showing the forward ends of various valve bars, the-rocker frame of the repeat mechanism and adjacent parts.

Fig. 7 1s a perspective view of the ustlfication control bar and actuating devices, and

Fig; -8 is a side elevation,- similar to Fig;

2, showinga modified justification control valve and operating elements therefor;

Like'characters of. reference in the several viewsindic'ate the same parts.

It isnot necessary,-1n setting forth *the present invention, to present a detailed de scription'of the composing machine fully disclosed in Patent No.94iA05. It is sufli oient for present purposes to designate andidentify' some of the parts of such machine ters which are in general the same as those found in the said. patent, are as follows the keys180, o erating the keybars 177, the rock shafts 174, forming the connections between the keybars and. the valve bars 173,

the valves 170, (Fig. 5) operated by: said valve bars, "the air chamber '161 containing airunder-pressureadapted to be admitted by the operation of the valves, to the'corresponding' cylinders of the pneumatic punch barimotor mechanisms to move the punch barleversl'? upwardly and with them thepunch bars 15; the line scale pointerli' carried by the line scale rack .14 in, mesh with the line scale pinion7, secured to theunits wheel shaft upon which is also secured the'units wheel .7 a Pinion latter" being driven" by, the motor piston" 4',

operatedflbvair underipres'surein the mo-i; tor cylinderlithe paper feed motorcyli-n-1 ders1?.7 and 138and thelpaper feed revers-' ing valve 1461 The justification indicating v mechanism" shown in the accompanying drawings does not require to be described in detail. LAs to those parts thereof which/are found-in the disclosureof Patent No.-1,1a9,17e it will be sufficient to point out the more important of them so thatvthe'mech'anism as a whole and its'op'eration may-be clearly brought'to mind. Reference'is thus made to the gag-' ing member 9 (Figs; 3 and 4)having rack teeth connected with the justification indi cater-8 by the gearing 10'; the pin l9zwithin the piston rod 23 of which is provided with rack teeth meshing with a pinion 'of the gearinglO, the diametrically opposite side of which pinion also meshes with the rack teeth of the gaging member 9; The cylinders 12 and-25 are connected together at all times by thepipes 2S and 117 and the latter is connected through a justification control valve, to'be described hereinafter, with air under pressure in the air chamber 161-; It will 'be' seen that'when airunder pressure is in the cylinders 12 and E25 thepiston 13 will move or maintain the' abutment slide against the motor piston 4: the piston 24. opposing the piston 13 but exerting less pressure on account of its smaller area. The

displacement of the abutment slide against the resistance of'piston 13' is accomplished by the. piston 4 which being of the greatest area, exerts the greatest pressure, and is followed atoms by the positioning of the indicator mechanism operated from the pie ton 24 to bring the pin 19 again in contactwith the abutment slide.

The repeat mechanlsm shown in the accompanyingdraWings follows after the general plan of that-of Patent No, 1,li9,175

but it contains departures therefrom as will appear from the following description. In the machine shown the valve bars 173 or those of such valve bars which it is desired to'have' automatically-repeat their functions, do not'contact directly with the valve stems 170," but theygare provided: with members which are normallymoved in unison therewith ,but i are 'linder-j certain circumstances eapab'le'y'of an independent movement to-- efl'ect the repeat action; As shown," in' the'y accoinpanying drawings, the" said valve bars 173 (Fig;. 5) are providedifat their inner ends with yokes 16*,lthe lower'en'ds of which extend down under" and are guided by the bo'ttoin' face of the rock shaft bracket con nectlng bar 17? Theseyokes are preferably made'of pa'rallelimembers soasto'be eX- ceedingly "light and between them there is 'pivotally mountedh .bell crank lever 18 the upper arm-of which projects into posi- .tion to cooperate with one of the valve stems 170 whenever the valve bar is advanced,

and th'e'other" arm of which projects parallel f with; the lowernortions' of; the yokes, but

I I extends beyond the same and is guided'by" said member Qfadajgted to-abu't atoneend the" under 'face'of'thepart 17 as well as by the upper face of a repeat bar 19 to be presently described. Inasmuch as the movement of the bell crank lever on its pivot 20 is normally prevented by the guiding faces between which the lower arm of the bell crank operates, a forward movement of the valve bar will result in a corresponding bodily forward movement of the bell crank and an operation of the appropriate valve stem and valve. This construction of the valve bars is one which may be cheaply manufactured, is exceedingly light and in its operation does not impose upon the operator any appreciable additional labor, the latter feature being an important considera tion in the machine, inasmuch as any additional labor imposed on the operator tends to decrease the speed of production.

Obviously, in such an arrangement should the valve bar be advanced from the position shown in Fig. 8 to that shown in Fig. 5, and there held, as by keeping the key depressed, the valve may be operated by permitting the bell crank lever to move on its pivot 20*, and advantage is taken of this arrangement in efiecting the repeat operation by providing for a rapid reciprocation of the repeat bar 19 (see dotted lines in Fig. 5). The operation of the bell cranks on the valve bars not advanced is prevented by permittin g the upwardly extending arms of the bell cranks to seat against the front of the valve bar guide 17". Conveniently, the bell crank levers are formed with projections 18 which extend between the yokes 16 to contact with the guide 17, as shown in Fig. 8.

In the preferred arrangement, the repeat bar 19, forms a part of a rocker frame 21* pivotally mounted at 22 on a bracket 23 (Fig. 2) fastened to the connecting bar 17 The rocker frame 21 is at one end provided with a rearwardly extending arm 2%, (see Figs. 1, 2, 5 and 8) with which the repeat motor cooperates. The repeat motor, as in the patent last above referred to, embodies generally in its construction a pair of oppositely disposed cylinders 25 and 26 in which pistons are mounted to reciprocate and between the proximate faces of which pistons the end of the arm 24 is located.

Pneumatic pressure for operating the pistons is supplied to the cylinders through ducts 52 which lead from the paper feed cylinders 137 and 138, as shown in Fig. 1, or from the valve 146 which supplies the cylinders 137 and 138, just as in said prior patent, and obviously when repeat action is desired, the pistons will be reciprocated and the repeat bar 19 moved to oscillate the bell crank lever or levers as desired.

In so far as the control of the pneumatic pressure for operating the repeat motor is concerned, the present mechanism does not differ from the mechanism of the said prior patent, and corresponding arrangements are shown for efiecting this end in Fig. 1 which is in this respect similar to Fig. 1 of the said patent.

The repeat against stops 19 bar 19 is normally held up or in its elevated position by a supporting latch 27*, formed on a downwardly extending arm of the plate 28 (Fig. 7), pivotally mounted on a shaft 30' carried by an end bracket 31 of the frame 23 A lever 29 projects upwardly from the plate 528 and is adapted for the reception of the rear end of a stop rod 32 (see Fig. 6) mounted to slide longitudinally in a bearing in the keyboard frame and to be normally held in its forward position by a spring 33 (see Fig. 1). The connection between the rod 32 and the lever 29 is formed by a bifurcation or slot bearing in the end of the lever and a double collar sleeve 34: mounted on the inner end of the rod.

Pivotally mounted, preferably on the shaft 3O before referred to, is a repeat key rocker frame 36 with which the inner end of the repeat key bar 37 is adapted to cooperate to move the rocker frame 36 rearwardly, whenever the repeat key 15 is depressed. The rocker frame 36 is formed with an upwardly extending arm constituting a lever 37, preferably arranged parallel with the lever 29 and having its upper end bifurcated for the reception of the rear end of a stop rod 38. Said rod is provided on its inner end with an adjustable collar or shoulder 38*, whereby a rear or inward movement of the lever will efiect a corresponding movement of the rod.

At their forward ends the rods 32" and 38 are connected by a trip bar in such a way that advance movement of rod 38 will cause a corresponding movement of rod 32 The tripping of this bar may be accomplished by any suitable mechanism (not shown) preferably under the control of the line scale rack 14:, for automatically stopping the re peat mechanism. A suitable mechanism of this kind is set forth in the pending application of Bancroft, Indahl and Hofberg, Serial No. 62,611; filed November 20th, 1915, now Patent No. 1,220.058, dated March 20, 1917. Other stop mechanisms are disclosed. in Patents No. 1,106,538 and No. 1,149,232, but it is to be understood that for the purposes of this invention any suitable repeat mechanism may be employed whether or not it is equipped with an automatic stop device.

As has been hereinbefore stated, the repeat bar 19 is normally held in elevated position against the stops 19 by the latch 27 on the plate 28; this latch cooperates in the mechanism shown in Figs. 17, inclusive, with the projection 4C0 on the bar. The plate and latch are normally positioned against the stop bracket 41 secured to the frame 23 by the screws 42, due to the action of the springs 33 and l3 or either of them.

7 One "end of the last mentioned spring is seace terally extending from the plate 28.

cured to a fixed part of the machine as the frame 23*, by means of the pin 44*, the other end being secured to the pin hit- -n this normal position of these parts the pin 45 rests against the downwardly projecting portion 46 of the justification control valve bar (Figs. 3.and 7 and thus normally maintains said valve bar in advanced position as shown in Fig. 3. In such position the end of the valve bar 50 engages with the stem of the justification control valve 51 and maintains, the valve head off its seat so as normally to maintain an open communication for the air under pressure between the air chamber 161 and the pipe 117 leading to the. motor or motors associated with the; justification indicating device.

Normally, then, the. repeat motor is held from operation by the latch 27 cooperating with the projection 40"* on the repeat bar 19*, another part of the repeat bar, namely, the arm 24?, extending between and maintaining inactive the pistons in the repeatcylinders 25 and 26*. When any of the keys 18.0 are depressed the composing machine will operate in the usual manner; within the justification area the motor pis.- ton 1 advances the abutment slide 9*, such movement being against, the opposition formed by air under pressure in the cylinder 12, and this is followed by the rotation of the justification indicator and the corresponding movement of. the pin 19 until the latter comes against the projection 115 of the slide 9 in its new or displaced position.

When it is desired to repeat the signals of a desired character in the record strip, the key representing such character and also the repeat key 15 are depressed. The latter key causes an advance of the repeat key bar 37 which rotates the rocker frame 3.6. upon its shaft 30. so as: to operate the lever 37; and by it advance the rod 38". The latter causes the, rod 32 to advance also, because; of the trip bar connection between. these rods (as in said Patent No. 1220.058), and the rod: 32? rocks the arm 29 and the. plate 28. secured thereto away from the stop-41 this movement being against the tension of the springs 3.5 and 443. The rocking of the plate-28. removes the latch 27 from; the projection 40 on the repeat barl9 so; as to. allow the repeat motor to. operate said bar v and also moves the pin. 45? fromv its normal position in which it holds the justification control valve bar 50, advanced The latter and the justification control} valve 51 are retracted because ofthe [air pressure in chamber 161 acting upon. the valve head, and the communication between said chamber 161 and the pipe 11.7 is closed, During the operation of the repeat.- motor, therefore, the airmotor elements of the justification indicating mechanism are cut off from their source of air under pressure and are exhausted to the atmosphere. There is no operation of these parts while the repeat key is down and there is no resistance opposed to the operation of the line measuring mechanism to influence the proper operation of the same.

'Upon releasing the repeat key 15 the parts moved by its depression are returned to their normal positions, the latch 27 locking the bar 19 against operation and the pin 45 advancingthe justification valve control bar 50 and'itsvalve. 51 to establish normal communication between the justifis' cation devices and the air chamber 161. Thus at the end of the repeat operation air is. admitted to the cylinders 12 and 25'and the abutment slide 9 the gaging number 9 and the indicator 8 are moved, if necessary, to: the position in which the slide, rests against. the motor piston 4t, theparts 19 and 11st rest. against the portion 115 of the slide and the indicator is in position corresponding to the. position of these parts.

It will be understood of course that the depression of any character key will advance. one or more of the valve bars 173and that when the repeat bar 19 is in motion the bell cranks 18 of the advanced bars 173,

will oscillate to cause the rapid opening and closing of the corresponding valves "170. Thisrepetition in the operation of these valves will cause the usual operation of the punch mechanism, paper feed mechanism, line measuring mechanism and other mechanisms of the composing machine which operate in accordance with the operation'of valves 170.

In the modification shown in Fig. 8 the pin 45 and cooperating projection 16* of thejustificationcontrol valve vbar 50 are dispensed with and instead of the justification control valve 51 which is. similar inconstruction to. the ordinary valves 170,.

there is used a justification control valve; of slightly different structure such that com munication is maintained. between the chamber 161v and the pipe 117 when the valve is in its normal retracted position and such communication is cut off when the. valve is advanced, In this modified construction the valve bar 50- isprovided with an upwardlyprojecting part 52 the rearward portion of which rests against the pin 53 laterally projecting from the upwardly projecting .arm 54: integral with the plate; 28 The justification control valve 551 has a reduced inner; end 55. so that when its stem rests against the end of valve bar 50 in retracted position, there. is free passage, between the chamber 161 andthepipe 117 when, however, the bar and; its. valve. are

advanced this connection is broken and the pipe 117 is placed in communication with the atmosphere. The justification control valve 55 and its valve bar 50 are advanced by the advance of the repeat key bar 37 which rocks the frame 36 and its lever 37 through which and the trip bar the lever 29 and the plate 28 are rocked, as described in connection with the mechanism of Figs. 1 to 7, inclusive, and with the plate 28 is moved the arm 54 and the pin 53 secured thereto, so as to cooperate with the rearward portion of the projection 52 and advance the bar 50.

In both of the above constructions it will be noted that the justification valve is normally open so as to maintain air under pres sure in the cylinders of the motors associated with the justification indicating mechanism. The operation of the repeat mechanism, however, automatically closes the said valve and exhausts said cylinders; thus, the advance of the line measurin mechanism within the justification area meets with no appreciable resistance due to the justification indicating mechanism and transmits none of its motion to such mechanism. Upon the stopping of the repeat mechanism, air pressure will be at once admitted to the justification indicating motor and the abutment slide and associated parts will thereby be moved until the pin 1 9 is against its stop 22 or until the slide 1s against the piston l. When in the specification and claims I refer to the justification indicating mechanism or parts thereof as being inactive, I mean that such mechanism or its parts do not perform their functions of indicating proper justification, although, in some cases, there may be an actual movement of such mechanism or some of its parts.

What is claimed is:

1. A typographic composing machine embodying a repeat mechanism, an automatic justification indicating mechanism and means for automatically rendering the justification indicating mechanism inactive while the repeat mechanism is in operation.

2. A typographic composing machine embodying a repeat mechanism, an automatic justification indicating mechanism provided with a. motor and means operated by said repeat mechanism for rendering said motor temporarily inactive.

3. A typographic composing machine embodying a repeat mechanism, provided with a manually controlled actuating mechanism, an automatic justification indicating mechanism provided with a motor, and means operated in unison with said actuating mechanism for rendering said motor inactive.

4. A typographic composing machine embodying a repeat mechanism having an air pressure motor, an automatic justification indicating mechanism having an air pressure bodying a repeat mechanism provided with an air pressure motor and a manually controlled actuating mechanism, an automatic justification indicating mechanism having an air pressure motor, and means operated by said actuating mechanism for rendering said last mentioned motor inactive.

7. In a typographic composing machine including key controlled signal producing and line measuring mechanism and justification indicating mechanism adapted automatically to follow up the movements of said line measuring mechanism Within the justification area, and in combination therewith, means for causing an automatic repetition of the operation of the signal producing mechanism for an operated controlling key, and means connected with said repeating means and with said justification indicating mechanism for rendering the latter inactive while the former is in operation.

8. In a typographic composing machine including key controlled signal producing mechanism, a repeat mechanism, automatic justification indicating mechanism comprising an indicator and a motor for operating the same, and in combination therewith, means operated by said repeat mechanism for rendering said motor inactive.

9. In a typographic composing machine including key controlled signal producing mechanism and line measuring mechanism, a repeat mechanism, automatic justification indicating mechanism comprising an abutment slide adapted to be advanced by said line measuring mechanism, a motor for returning said abutment slide, an indicator and a motor for operating said indicator to a position determined by said abutment slide, and in combination therewith, means operated by said repeat mechanism for rendering said indicator operating motor inactive.

10. In a typographic composing machine including key controlled signal producing mechanism and line measuring mechanism,

a repeat mechanism, automatic justification indicating mechanism comprising an abutment slide adapted to be advanced by said line measuring mechanism, an air pressure motor for returning said abutment slide, an indicator and a motor for operating said indicator to a position determined by said abutment slide, and in combination therewith, means operated by said repeat mechanism for relieving said air pressure motor of air under pressure.

11. In a typographic composing machine including key controlled signal producing mechanism and line measuring mechanism, a repeat mechanism, automatic justification indicating mechanism comprising an abutmentslide adapted to be advanced by said line measuring mechanism, an air pressure motor for returning said abutment slide, an indicator, and an air pressure motor for operatingsaid'indicator to a position determined: by said abutment slide, and in combinationthe'rewith, means operated by said repeat mechanism for relieving both'ofsaid motors of air under pressure.

12; In a typographic composing machine including key controlled-signal producing and line measuring mechanism, automatic justification indicating mechanism provided 'Wth' an air pressure motor, repeat -mechanism comprising an air pressure motor, a latch device for controlling the operation of said repeat motor, a repeat key and'means operated: by said repeat key for operating said latch device, and in combination there- With a valved conduit connecting said justification indicating mechanism motor With a sourcepof air under pressure, said valve being controlled by said latch device, whereby When: said latch device is operated by the repeat key said justification indicating mechanism motor is relieved of air under pressure:

l3;- In a typographic composing machine including key controlled signal producing and-line measuring mechanism, automatic justification indicating mechanism comprising an abutment slide adapted to be ad- 'vanced by said line measuring mechanism, :air pressurezmotor for returning said abutment slide, an indicator anda motor for operating said indicator to a position determined by said abutment slide, a repeat mechanism comprising an air pressure mo tor, a latch device for controlling the operation of said repeat motor, a repeat key andmeans operated by said repeat key for operating said latch device, and in combination therewith, a valved conduit connecting said abutment slide return motor With a.

including key controlled signal producing and line: measuring mechanism, automatic ustificationindicating mechanism comprising an abutment slide adapted to be ad-- vanced by said. line measuring. mechanism, an EUI'YPIGSSUI'B' motor for returning said abutment slide, anindicator and an air pressure motor for operating, said indicator to a position determined by said abutment slide, a repeat mechanism comprising-an air pressure motor, a latch deviceyfor controlling the operation .of said repeat motor, a repeat key. and means operated by said repeat key for operating said latch device, and in combination therewith a valved conduit connecting both said abutment slide return motor 1 and said justification indicating mechanism motor with a source of air under pressure, said valve'being controlled by said latch device, whereby when said, latch. de vice is operated. by the repeat key both said abutment slide. return motor and-said justificationzindicating mechanism motor are re lieved-of air under pressure.

MAURITZ C. INDAHL.

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